Currently on the market in Shandong, the mainstream business card or induction IC card as storage medium, but has been a part of enterprises in the use of CPU card and mobile phone card to implement business card. CPU card IC card security is higher. Each card inside the equivalent of a small system, encryption arithmetic. Mobile phone business card is more convenient, realize mobile phone card and card chip become, at some schools, and large enterprises have used. The future market will be the CPU card, and mobile phone card as the card is an inevitable trend.